You can never have too many chains on those things. Other then ease of loading and unloading, is there a reason they don't lay them on their side so they don't roll so easy?
Mainly moving them... while on the side trying to lift them, you run the risk of "ice cream coming" the coil. Either center pulls out or the outer pulls out either way it's a time consuming mess to fix.
that coil was ~40,000lbs had 7 chains on it after the picture..
What you can barely see is the coil rack and cribbing that keeps the coil from rolling...
The coil does not actually touch the deck itself.. you make a cradle with coil racks and hard wood mainly oak with a beveled edge that faces the coil.. if need be, can through rubber strips to increase friction between everything. Mainly between coil and rack and rack and trailer.
The company buys "scrap/damaged " coils and slits/cuts them down to smaller useable widths/length for short-run or small volume customers.
90% of what I haul is "finished goods" product ready to be delivered to end consumer.
99% of that product is laid sideways on skids. With skid weighing generally sub 5000lbs